"The battle to feed all of humanity is over. In the 1970s and 1980s hundreds of millions of people will starve to death in spite of any crash programs embarked upon now. At this late date nothing can prevent a substantial increase in the world death rate..."

Nice quote from "The Population Bomb" by Paul R. Ehrlich.

The real looming population problems are more akin to the Clash of Civilization type as Europe grays and continues to import its workers from cultures at odds with its own. How many cars burned in France on New Year's Day? China also has set itself up for an interesting future with the wildly distored male/female ratio brought about by its opressive one child laws.